PASADENA – Drivers should expect delays while a major construction project continues today on the 110 Freeway in Pasadena and South Pasadena, Caltrans said.

Caltrans is adding safety improvements to the freeway between Glenarm Street and the 5 Freeway. Crews will be working on on- and off-ramps, as well as the freeway roadway itself, Caltrans spokeswoman Kelly Markham said.

Work will shut down lanes of the freeway from 8 p.m. Friday until 6 a.m. Saturday.

The $17 million project is designed to increase safety on the 110 for both motorists and road workers, reduce maintenance costs and improve the appearance of the highway, Markham said. It is expected to be completed by winter 2011, she added.